I got the same error occuring under Windows 2000 Pro SP3. I have to restart Xolox 1.4 multiple times during the day.

It's ironic that the last two beta builds threw no errors on the system, and now the shipped release of 1.4 does.

Also, I never notice anyone actually uploading files from my system anymore. There's no log of files actually uploaded by other Gnutella users, so I don't know if I have a problem or not.